18690534

素因数分解:

$2^1\times 3^3\times {\mathrm{89}}^1\times {\mathrm{3889}}^1$

素因数の和:3989

約数の個数: 32

約数和(自身を含む): 42012000

約数和(自身を除く): 23321466

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 89, 178, 267, 534, 801, 1602, 2403, 3889, 4806, 7778, 11667, 23334, 35001, 70002, 105003, 210006, 346121, 692242, 1038363, 2076726, 3115089, 6230178, 9345267, 18690534]

約数ペア:

[(1, 18690534), (2, 9345267), (3, 6230178), (6, 3115089), (9, 2076726), (18, 1038363), (27, 692242), (54, 346121), (89, 210006), (178, 105003), (267, 70002), (534, 35001), (801, 23334), (1602, 11667), (2403, 7778), (3889, 4806)]